March 14 (3-14) has become known as Pi Day, with foodservice providers offering novel deals. 7-Eleven announced it is bringing back its annual deal by offering loyalty members any flavor large pizza for $3.14.

“The cheesy holiday comes just in time for customers to try the Extreme Meat Pizza—back by popular demand. With its five-meat blend including pepperoni, Canadian bacon, beef crumble and bacon bits, every slice is a mathematical masterpiece worth celebrating,” the retailer said in its press release.

The retailer will also offer special Pi Day deals on the 7NOW delivery app. In addition to enjoying $3.14 large pizzas delivered straight to your door, 7NOW users can also score $14 off $30 using the promo code PIDAYDEAL and free delivery with a purchase of $15 or more.

"Our customers look forward to this Pi Day deal each year—it's a fun tradition they really enjoy," said Dave Strachan, senior vice president, fresh foods at 7-Eleven. "Whether you're a math aficionado, a foodie or simply someone looking for a reason to celebrate, Pi Day offers something for everyone."

Restaurant Business provides a roundup of other offers, as does USA Today. Among the noteworthy promotions is a free Hershey Pie offered by Burger King.

Last month, 7-Eleven unveiled a promotion offering rewards members free concert tickets for a year.